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#1 (permalink) Old 07-19-2012, 07:58 PM
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More oil questions

I just purchased a 1999 540i with 105k and its an automatic.
1. What oil should I use if I'm not sure whats been used previously? Dino or synthetic. Is dino oil ok? I had a Volvo 850 turbo that had 300k until I sold it using dino oil the whole time.
2. Is valvoline ATF-4 synthetic good for the Trans fluid change?
3. When should I change the Diff oil?
4. Anything I can do to beef up the Auto transmission?

P.S. I searched so don't give me a hard time or I'll give you a Cyber Punch to the grill! XD
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#2 (permalink) Old 07-20-2012, 01:46 PM
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Quote:
Originally Posted by 4given View Post
I just purchased a 1999 540i with 105k and its an automatic.
1. What oil should I use if I'm not sure whats been used previously? Dino or synthetic. Is dino oil ok? I had a Volvo 850 turbo that had 300k until I sold it using dino oil the whole time.
2. Is valvoline ATF-4 synthetic good for the Trans fluid change?
3. When should I change the Diff oil?
4. Anything I can do to beef up the Auto transmission?

P.S. I searched so don't give me a hard time or I'll give you a Cyber Punch to the grill! XD
1. High quality Dino is good. Full synthetic better.
Change Dino after 3K miles. Synthetic 5-7K miles. I have used synthetic for 30 years because of its superior flow during starting (where most of an engine's wear takes place).

2. For your 5 speed trans
83 22 9 407 807 - ZF Lifeguard Fluid 5
You can also take BMW part # - 83 22 9 407 807 and cross reference to another fluid manufacturers like Pentosin.
I have 545i so I use 6-speed trans fluid.

3. Recommend rear diff fluid every 50-60K miles. If you don't know car's history change it now.

4. Beef up transmission ??? Nothing other than fluid and filter change.
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#3 (permalink) Old 07-20-2012, 01:53 PM
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Thumbs up

Well, here is a website totally dedicated to the topics of vehicle lubricants.

Incredible resource!

- Bob is the Oil Guy




.

"LEAD, FOLLOW or GET THE HELL OUT OF THE WAY !"
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#4 (permalink) Old 07-20-2012, 02:40 PM
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Awesome. Thanks guys!
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